<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <el-table :data="userlist" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClose">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClose">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUser">确 定</el-button>
            </span>
        </el-dialog>
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
            <div>
                <p>当前的用户:{{userInfo.username}}</p>
                <p>当前的角色:{{userInfo.role_name}}</p>
                <p>分配新角色:
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data() {
        var checkEmail = (rule, value, callback) => {
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)) {
                return callback()
            }
            callback(new Error('请输入合法邮箱'))
        }
        var checkMobile = (rule, value, callback) => {
            const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)) {
                return callback()
            }
            callback(new Error('请输入合法手机号'))
        }
        return {
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 2
            },
            userlist: [],
            total: 0,
            addDialogVisible: false,
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            addFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '用户名的长度在3-10个字符之间', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '密码的长度在6-15个字符之间', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur'}
                ]
            },
            editDialogVisible: false,
            editForm: {},
            editFormRules: {
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur'}
                ]
            },
            setRoleDialogVisible: false,
            userInfo: {},
            rolesList: [],
            selectedRoleId: ''
        }
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList() {
            const { data: res } = await this.$http.get('users', { 
                params: this.queryInfo 
            })
            if(res.meta.status !== 200) return this.$message.error('获取用户列表失败')
            this.userlist = res.data.users
            this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        async userStateChange(userinfo) {
            const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status != 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功')
        },
        addDialogClose() {
            this.$refs.addFormRef.resetFields()
        },
        addUser() {
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return
                const { data: res } = await this.$http.post('users', this.addForm)
                if(res.meta.status !== 201) {
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        async showEditDialog(id) {
            this.editDialogVisible = true
            const { data: res } = await this.$http.get('users/' + id)
            if(res.meta.status !== 200) {
                return this.$message.error('查询用户信息失败')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClose() {
            this.$refs.editFormRef.resetFields()
        },
        editUser() {
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                const { data: res } = await this.$http.put('users/' + this.editForm.id, {
                    email: this.editForm.email, mobile: this.editForm.mobile
                })
                if(res.meta.status !== 200) {
                    return this.$message.error('更新用户信息失败')
                }
                this.editDialogVisible = false
                this.getUserList()
                this.$message.success('更新用户信息成功')
            })
        },
        async removeUserById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            if(confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }
            const { data: res } = await this.$http.delete('users/' + id)
            if(res.meta.status !== 200) {
                return this.$message.error('删除用户信息失败')
            }
            this.getUserList()
            this.$message.success('删除用户信息成功')
        },
        async setRole(userInfo) {
            this.userInfo = userInfo
            const { data: res } = await this.$http.get('roles')
            if(res.meta.status !== 200) {
                return this.$message.error('获取角色信息失败')
            }
            this.rolesList = res.data
            console.log(this.rolesList)
            this.setRoleDialogVisible = true
            this.$message.success('获取角色信息成功')
        },
        async saveRoleInfo() {
            if(!this.selectedRoleId) {
                return this.$message.error('请选择要分配的角色')
            }
            const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
            if(res.meta.status !== 200) {
                return this.$message.error('更新角色信息失败')
            }
            this.$message.success('更新角色信息成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        setRoleDialogClose() {
            this.selectedRoleId = ''
            this.userInfo = ''
        }
    }
}
</script>

<style lang="less" scoped>
.el-pagination {
    margin-top: 15px;
}
</style>